ELECTROMAGNETIC CONNECTOR

• US 20140335703A1
• Filed: 08/06/2013
• Published: 11/13/2014
• Est. Priority Date: 12/30/2011
• Status: Active Grant

• Current Assignee: Analog Devices, Inc.
• Original Assignee: Bedrock Automation Platforms, Inc. (Analog Devices, Inc.)
• Inventors: Calvin, James G., Rooyakkers, Albert, Koran, Michael
• Granted Patent: US 9,437,967 B2
• Time in Patent Office: Days
• US Class Current: 439/39
• CPC Class Codes: H01F 2038/143 for signals
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01R 13/6205 Two-part coupling devices held in engagement by a magnet
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H04B 5/263 Multiple coils at either side
• CPC Class Codes: H04B 5/72 for local intradevice communication

Abstract

An electromagnetic connector is disclosed that is configured to form a first magnetic circuit portion comprising multiple coils disposed about a first core member. The electromagnetic connector is configured to mate with a second electromagnetic connector that is configured to form a second magnetic circuit portion comprising a coil disposed about a second core member. When the electromagnetic connector is mated with the second electromagnetic connector, the first core member and the second core member are configured to couple the multiple coils of the electromagnetic connector to the coil of the second electromagnetic connector with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion. The magnetic circuit is configured to induce a signal in a first coil of the multiple coils and the coil of the second electromagnetic connector when a second coil of the multiple coils is energized.

Claims

1. An electromagnetic connector configured to form a first magnetic circuit portion, the electromagnetic connector comprising:

a first core member; and

a plurality of coils disposed about the first core member, each one of the plurality of coils configured to separately connect to a corresponding one of a plurality of electrical circuits, the electromagnetic connector configured to mate with a second electromagnetic connector, the second electromagnetic connector configured to form a second magnetic circuit portion, the second electromagnetic connector comprising a second core member and at least one coil disposed about the second core member, the first core member and the second core member configured to couple the plurality of coils to the at least one coil with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion when the electromagnetic connector is mated with the second electromagnetic connector, the magnetic circuit configured to induce a signal in a first coil of the plurality of coils and the at least one coil when a second coil of the plurality of coils is energized.

2. The electromagnetic connector as recited in claim 1, wherein each one of the plurality of electrical circuits is fabricated on a single printed circuit board.

3. The electromagnetic connector as recited in claim 2, wherein the single printed circuit board is configured to support the first core member and the plurality of coils.

4. The electromagnetic connector as recited in claim 1, further comprising at least one layer of material disposed of the first core member for separating the first core member from the second core member when the electromagnetic connector is mated with the second electromagnetic connector.

5. The electromagnetic connector as recited in claim 1, wherein the first core member comprises an I-shaped core member.

6. The electromagnetic connector as recited in claim 6, wherein the I-shaped core member is configured to mate with a second I-shaped core member.

7. A device comprising:

a plurality of electrical circuits; and

an electromagnetic connector configured to form a first magnetic circuit portion, the electromagnetic connector comprising a first core member and a plurality of coils disposed about the first core member, each one of the plurality of coils configured to separately connect to a corresponding one of the plurality of electrical circuits, the electromagnetic connector configured to mate with a second electromagnetic connector, the second electromagnetic connector configured to form a second magnetic circuit portion, the second electromagnetic connector comprising a second core member and at least one coil disposed about the second core member, the first core member and the second core member configured to couple the plurality of coils to the at least one coil with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion when the electromagnetic connector is mated with the second electromagnetic connector, the magnetic circuit configured to induce a signal in a first coil of the plurality of coils and the at least one coil when a second coil of the plurality of coils is energized.

8. The device as recited in claim 7, further comprising a printed circuit board, wherein each one of the plurality of electrical circuits is fabricated on the printed circuit board.

9. The device as recited in claim 8, wherein the printed circuit board is configured to support the first core member and the plurality of coils.

10. The device as recited in claim 7, wherein at least two electrical circuits of the plurality of electrical circuits are at least substantially identical.

11. The device as recited in claim 7, further comprising at least one layer of material disposed of at least one of the first core member or the second core member for separating the first core member from the second core member when the first electromagnetic connector is mated with the second electromagnetic connector.

12. The device as recited in claim 7, wherein at least one of the first core member or the second core member comprises an I-shaped core member.

13. The device as recited in claim 12, wherein at least the other one of the at least one of the first core member or the second core member comprises a second I-shaped core member configured to mate with the I-shaped core member.

14. An industrial control system comprising:

an industrial element comprising a plurality of electrical circuits and a first electromagnetic connector configured to form a first magnetic circuit portion, the first electromagnetic connector comprising a first core member and a plurality of coils disposed about the first core member, each one of the plurality of coils configured to separately connect to a corresponding one of the plurality of electrical circuits;

a backplane comprising a second electromagnetic connector, the second electromagnetic connector configured to form a second magnetic circuit portion, the second electromagnetic connector comprising a second core member and at least one coil disposed about the second core member; and

a passive hub formed by mating the first electromagnetic connector with the second electromagnetic connector, the first core member and the second core member configured to couple the plurality of coils to the at least one coil with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion when the first electromagnetic connector is mated with the second electromagnetic connector, the magnetic circuit configured to induce a signal in a first coil of the plurality of coils and the at least one coil when a second coil of the plurality of coils is energized.

15. The industrial control system as recited in claim 14, further comprising a printed circuit board, wherein each one of the plurality of electrical circuits is fabricated on the printed circuit board.

16. The industrial control system as recited in claim 15, wherein the printed circuit board is configured to support the first core member and the plurality of coils.

17. The industrial control system as recited in claim 14, wherein at least two electrical circuits of the plurality of electrical circuits are at least substantially identical.

18. The industrial control system as recited in claim 14, further comprising at least one layer of material disposed of at least one of the first core member or the second core member for separating the first core member from the second core member when the first electromagnetic connector is mated with the second electromagnetic connector.

19. The industrial control system as recited in claim 14, wherein at least one of the first core member or the second core member comprises an I-shaped core member.

20. The industrial control system as recited in claim 19, wherein at least the other one of the at least one of the first core member or the second core member comprises a second I-shaped core member configured to mate with the I-shaped core member.